Microwave oven



FIG. 1 is a perspective view of the microwave oven showing my new designas it appears with the oven turned on;

FIG. 2 is a front elevational view thereof with the oven turned off;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a bottom plan view thereof.

The ornamental design for a microwave oven, as shown and described.